How to grow pawpaw
Overview
Pawpaw (Carica papaya) is a fast-growing tropical fruit tree prized for its sweet, orange-fleshed fruit. It thrives in warm, frost-free climates with rich, well-drained soil and consistent moisture.
Varieties
- Red Lady — A popular hybrid with large, sweet fruit and good disease resistance, widely grown in subtropical Australia.
- Sunrise Solo — A dwarf variety from Hawaii, suited to small gardens, with small, very sweet fruit.
Soil Preparation
Pawpaw prefers slightly acidic to neutral soil (pH 6.0–7.0) with excellent drainage. Before planting, dig in plenty of well-rotted compost or aged manure. Avoid heavy clay; if drainage is poor, plant on a mound or in a raised bed.
Growing Guide
Plant pawpaw in full sun with shelter from strong winds. Space trees 2–3 m apart. Dig a hole twice the width of the root ball and enrich with well-rotted manure. Keep the soil consistently moist but not waterlogged; apply a thick layer of organic mulch to retain moisture. In cooler subtropical areas, plant against a north-facing wall for extra warmth.
Sowing
Sow pawpaw seeds 1 cm deep in seed-raising mix, keeping warm and moist. Germination takes 2–4 weeks. Transplant seedlings when 15–20 cm tall. Direct sowing is possible in warm climates but potted starts give a head start.
Care
Feed pawpaw every 6–8 weeks during the growing season with a balanced fertiliser high in potassium, such as a fruit tree formula. Prune only to remove dead or damaged leaves; heavy pruning reduces fruiting. Maintain a thick layer of organic mulch around the root zone to retain moisture and suppress weeds.
Companion Planting
Grow pawpaw with sweet potato, passionfruit, and bananas for shared warmth and moisture. Avoid planting near cucurbits like pumpkin and cucumber, as they can share pests such as fruit fly and powdery mildew.
Common Pests & Risks
Fruit fly is the main pest; use exclusion bags or netting on developing fruit. Mites and aphids can be controlled with a strong water spray or horticultural oil. Powdery mildew may appear in humid conditions; improve air circulation and avoid overhead watering.
Harvesting
Harvest pawpaw when the fruit begins to show a hint of yellow-orange colour and yields slightly to gentle pressure. Pick and ripen indoors at room temperature for best flavour. Fruit left too long on the tree can become bland and attract birds.
In the Kitchen
Pawpaw is best eaten fresh when fully ripe. Use in smoothies, fruit salads, or as a tenderiser in marinades. Store at room temperature; refrigerate only when fully ripe.
Troubleshooting
Yellow leaves: overwatering or poor drainage; improve soil or reduce watering. Stunted growth: lack of potassium; feed with a high-potash fertiliser. Fruit drop: sudden temperature change or water stress; maintain consistent moisture. Powdery mildew on leaves: improve air circulation and avoid overhead watering.